题目内容
6.We were lucky to get out of there without running into the security guys,because there ________ real trouble( )A. | couldn'thavebeen | B. | weren't | ||
C. | were | D. | couldhavebeen |
分析 我们很幸运离开那里没有遇到保安,因为本可能会有麻烦.
解答 答案是D.本题考查"情态动词+have done"表示虚拟的结构.根据句意,我们很幸运没有遇到保安,说明事实是没有麻烦,所以because从句中是与过去事实相反的虚拟"本可能会有麻烦";could have done表示"本可能而实际上没有",所以答案选择D.A项结构couldn't have done 表示推测"不可能已经…",不符合题意; B和C是过去时,不能表示与过去事实相反的虚拟,所以排除.
点评 在掌握虚拟语气的规则的基础上,判断题干属于什么类型的虚拟,然后根据语境,选用恰当的动词形式表达虚拟.
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